All-electric Ford Focus to use liquid cooled/heated lithium-ion battery system

One of the downsides of the lithium-ion battery systems used in electric vehicles is that their performance, reliability, safety and durability can be negatively affected by extreme temperatures. When the all-new Ford Focus Electric debuts later this year in the U.S. it will be powered by a lithium-ion battery – no news there. What is interesting, however, is that the battery system will use cooled and heated liquid to regulate battery temperature, which should extend battery life and maximize driving range.

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